Product Colors and Sizes

  • Black Friday product
  • New Deal product
  • Cyber Monday product
  • Clearance product
  • Deal product
  • Best Seller product
  • Ecodesign product
  • New product
  • Staff Pick product
  • In The News product
  • Innovation product
  • product

Olaian Isa X-Back One Piece Surf Swimsuit Women's

Sale price: $44.99 Regular price:

This 1-piece swimsuit is designed for surfers by combining paddling comfort, with its very open back, and feminine style, with its seams and bodycon effect.

Color: Select a color
Size: Select a size
Size Guide

This product runs small

Sale price: $44.99 Regular price:

Free shipping over $35

Free returns

Free pickup

San Francisco, 735 Market St. Options

Select an available color and size to see options.

Model: 8486012

Product Videos

Product Features

A photo of the Olaian Isa X-Back One Piece Surf Swimsuit Women's in use

Olaian Isa X-Back One Piece Surf Swimsuit Women's | As female surfers of all levels, we designed this swimsuit for advanced surfers surfing in all types of waves.

This 1-piece swimsuit is designed for surfers by combining paddling comfort, with its very open back, and feminine style, with its seams and bodycon effect.

Stays in place in the waves

Carefully designed to stay in place in waves of more than 40”

Product Lifestyle Image Gallery

Image Gallery

Olaian Isa X-Back One Piece Surf Swimsuit Women's,black 

Olaian Isa X-Back One Piece Surf Swimsuit Women's,black 

Olaian Isa X-Back One Piece Surf Swimsuit Women's,black 

Olaian Isa X-Back One Piece Surf Swimsuit Women's,black 

Olaian Isa X-Back One Piece Surf Swimsuit Women's,black

Product Customer Reviews

Skip to reviews
543 Reviews
Write a Review 

Olaian Isa X-Back One Piece Surf Swimsuit Women's,black
Filtered by reviews Loading reviews…

Great fit, I definitely recommend!!!

Great costume

This costume fits great, looks great for your local gym but also nice enough to wear surfing in the sea or at the local spa due to its nice V front Normally get about 9months use out of this at the gym using it 1-2 times a week with hand wash before the chlorine starts getting to it which is pretty good tbh


I am a UK Size 14/16 and have struggled to find a flattering swimming costume until now. I can only say that this costume is amazing. It looks good, and all my friends thought it came from a much more expensive top of the range UK women’s sports brand. If you are between sizes get a size up. I decided that with the costume looking as good as it does I don’t care that it’s the 16 that fitted me best.

very pretty

very pretty but a bit too dark and serious when on

icon-circle-checkmark verified purchase

Sexy 1 piece seimsuit. Fitting all shapes of body. Good quality & beautiful design. Also perfect for hard swimmers!

Hello Geraldine,

Thank you for taking the time to write down this review on our 1-PIECE SURF SWIMSUIT WOMEN BACK X ISA BLACK and i am please to hear that this product has given you much satisfaction !

In Decathlon, it is our mission to make sports accessible and affordable for the many. It is also our responsibility to ensure that our products are made to satisfy our users !

We look forward to have more of your reviews on our other Decathlon Products ! Plus, with the new Decathlon App, you can simply make your purchase will you walk around in our stores. All is takes is a few clicks on your smartphone ! The Decathlon App is available on both The App store and also Goggle Play store ! Download it now and start shopping !

Lets Play Sports !!


Sports Leader

Бански за сърф

Не препоръчвам

icon-circle-checkmark verified purchase


Благодарим Ви за отделеното време да дадете оценката си за нашия продукт!

Екипът ни следи всички канали, за да можем да подобряваме продуктите си всеки ден. Бихме се радвали да споделите кое точно доведе до негативната реакция, предоставена от Вас. 

Винаги призоваваме всеки клиент който има допълнителен въпрос или обратна връзка, да се свърже с нас на телефон: +35929021070 всеки ден от 9:00 до 18:00 часа.

Спортни поздрави,

Екипът на Декатлон България

Отличен продукт


icon-circle-checkmark verified purchase


Благодарим Ви, за отделеното време да споделите обратната си връзка за нашия продукт!

Като спортна компания, която се стреми да направи спорта достъпен за всеки, нашата цел е винаги да предоставяме качествени и функционални продукти.

Спортни поздрави,

Екипът на Декатлон


Perfektně sedí, véčkový výstřih je skvělý, jsou pevné a elegantní.

icon-circle-checkmark verified purchase
Slušivé a dobře sedí

Dobře sedí na těle a jsou velmi slušivé.

icon-circle-checkmark verified purchase
Jednodílné plavky

Plavky používám normálně na plavání v bazéně, skvěle podrží prsa, jsou pevné, nezařezávají se a vypadají skvěle.

icon-circle-checkmark verified purchase

Velmi příjemné plavky na plávání.

icon-circle-checkmark verified purchase
Super střih, ale

mohly by být delší.

icon-circle-checkmark verified purchase

Krásné plavky, které velice dobře drží na těle

icon-circle-checkmark verified purchase
Dámské plavky

Perfektní střih i vypracování

icon-circle-checkmark verified purchase
Naprosto skvělé plavky

Perfektní střih a skvvěle sedí. Jsem 182cm vysoká a tohle jsou první plavky v celku, které mi jsou v těle dost dlouhé. Dělají krásnou postavu.

icon-circle-checkmark verified purchase
Skip to reviews

Size Guide

Size Guide Visual

Additional Product Information


Main fabric: 80.0% Polyamide, 20.0% Elastane ; Lining: 100.0% Polyester ; Yoke: 76.0% Polyamide, 24.0% Elastane

You are an expert surfer

You surf intensively, it is your favorite sport. During your sessions, you paddle out to the lineup, duck dive under the breaking waves if you are on a shortboard, or turtle roll if you are on a longboard. You show commitment in powerful waves of more than 40”. Your swimsuit must stay in place for each of your movements, whatever the strength of the wave. We have designed a range for you that is suited to your intensive practice and your body shape.

Body shape

Especially suited to surfing and bodyboarding, the Isa 1-piece is the ideal swimsuit for surfers looking to combine comfort and femininity; all of the seams have been designed to protect the stomach from friction against the board and the wax, and to leave the shoulders and shoulder blades free to paddle. Its neckline and bodycon effect make it particularly feminine.

Stays in place in the waves: the test

We design swimsuits that promise to stay in place in the waves. To test them, we use a panel of female surfers with different body shapes who will follow a test protocol in a pool at our design offices in Hendaye. This protocol aims to reproduce the sensations experienced by surfers when being thrown around by a wave. If this test is conclusive, we go surfing in the sea to test our swimwear in real conditions.

Dry sizing and wet sizing

To ensure a perfect fit in the water, it is important to choose the right size while you are dry because once they are in the water, swimsuits become looser. We therefore recommend you buy the correct size. The swimsuit needs to fit snugly against your body in the fitting room, you should feel supported. The spandex contained in certain components used in the design of our swimsuits softens and relaxes in the water.

Do you want to exchange your swimsuit?

Is the size or style not suitable for you? Would you like to exchange it at your Decathlon store? No problem, just be sure not to cut off the label of the swimsuit in case you want to exchange it.

Olaian, decathlon's surf brand

Based in Hendaye, in Southwest France, OLAIAN is Decathlon's new surfing and bodyboarding brand. In our offices at the water's edge, we can design a swimsuit and then on the same day test it directly in the sea to make sure it stays in place in the waves.

Product testing

This product has been tested in use in Hendaye and has been subjected to numerous laboratory tests to guarantee the quality of use for which it was designed: tests on the fabric's elasticity and strength, colorfastness when rubbed, washed, exposed to sea water, chlorinated water and light, and tests on the product's overall performance after repeated washing.



Superior quality. Unbeatable prices.

For 40 years, Decathlon has delivered the best value in the retail sports industry by offering high-quality, sustainable and cost-effective products.

Decathlon makes the difference
  1. product-research

    Research and development

    delivers high-quality cost-effective products

  2. State-of-the-art production processes

    minimize manufacturing costs

  3. Optimized supply chain

    reduces retail prices

  4. laptop-checkout

    Minimal retail footprint

    lowers overhead and indirect costs